[Blackfin] arch: add implicit icplb for the bootrom so we can use the utility functio...
Mike Frysinger [Wed, 23 Apr 2008 23:23:36 +0000 (07:23 +0800)]
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/kernel/cplb-mpu/cplbmgr.c

index 3b165bb..44bbfe2 100644 (file)
@@ -165,7 +165,7 @@ static noinline int dcplb_miss(void)
                    && (status & (FAULT_RW | FAULT_USERSUPV)) == FAULT_USERSUPV) {
                        addr &= ~(1 * 1024 * 1024 - 1);
                        d_data &= ~PAGE_SIZE_4KB;
-                       d_data |= PAGE_SIZE_1MB | CPLB_USER_RD;
+                       d_data |= PAGE_SIZE_1MB;
                } else
                        return CPLB_PROT_VIOL;
        } else if (addr >= _ramend) {
@@ -243,7 +243,13 @@ static noinline int icplb_miss(void)
 #endif
 
        if (addr >= physical_mem_end) {
-           return CPLB_PROT_VIOL;
+               if (addr >= BOOT_ROM_START && addr < BOOT_ROM_START + BOOT_ROM_LENGTH
+                   && (status & FAULT_USERSUPV)) {
+                       addr &= ~(1 * 1024 * 1024 - 1);
+                       i_data &= ~PAGE_SIZE_4KB;
+                       i_data |= PAGE_SIZE_1MB;
+               } else
+                   return CPLB_PROT_VIOL;
        } else if (addr >= _ramend) {
                i_data |= CPLB_USER_RD;
        } else {